The AT831R is clip-on lavalier microphone provides crisp, full-sounding voice pickup. The AT831R also excels as an instrument mic, especially for pickup of acoustic guitar with included AT8444 guitar adapter. The microphone is ideal for higher SPL applications, such as pickup for horns with included AT8418 UniMount microphone instrument mount. Excellent gain before feedback and suppression of background noise. Operates on phantom power only.